Belt-shipper.



No. 73,763. Patented May 7, IQOI. J. A. CRAIG.

BELT SHIPPER.

(Application filed Oct. 1, 1900.)

(No Model.)

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UNITED STATES PATENT OFFICE.

JAMES ARCI-IIBALD CRAIG, OF SPRINGFIELD, ILLINOIS, ASSIGNOR OF ONE.

HALF TO RICHARD MONTAGUE DAVY, OF MONTREAL, CANADA.

BELT-SHIPPER.

SPECIFICATION forming part Of Letters Patent No. 673,763, dated May '7,1901.

Application filed October 1, 1900. Serial No. 31,685. (No model.)

T0 at whom it may concern:

Be it known that 1, JAMES AROHIBALD CRAIG, of the city of Springfield,in the State of Illinois, but temporarily residingin the city ofMontreal, Province of Quebec, Canada, have invented certain new anduseful Improvementsin Belt-Shippers and I do hereby declare that thefollowing is a full, clear, and exact description of the same.

My invention has for its object to provide a noiseless and self-oilingbelt-shipper and one that will be more elfective and less liable to getout of order and less costly than beltshippers heretofore known.

The invention may be said briefly to consist of a pair of spindles eachrecessed to receive an elongated roller which bears, preferably, in apair of automatically-1nbricated bearings, said spindles being adaptedto be mounted upon the shipper-rod, one on each side of the belt andwith said elongated rollers located adjacent to said belt, while abridge-piece is preferably connected at its ends to the outer ends ofsaid spindles to space them relatively to one another and at the sametime prevent the belt jumping from between them. For full comprehension,however, of my invention reference must be had to the accompanyingdrawing, forming a part of this specification, wherein myimprovedbelt-shipper is shown in perspective View, partly in section.

The shipper-rod b is and may be of usual form.

Myimproved shipper-fingers are constructed and secured to theshipper-rod as follows: A pair of hollow spindles 0, each preferablyconsisting of a short length of pipe, has the exterior of one endscrew-threaded, as at d, to take into a tapped boring in the side of acollar e, secured rigidly upon the shipper-rod by a set-screw f. Oneside of each hollow spindle is cut away, as at g, and the interiorthereof is increased in bore from the outer end thereof to within ashort distance of the inner end to form ashoulder h, while the outer endof the interior is tapped tothe adjacent end of the side opening. A plugj, formed with a cavity is, is driven into each spindle to a positionjust inside of the shoulder h, where it will be jammed and further heldagainst displacement by a screw 1, taking through a tapped boring in thesides of the spindle and plug. A bearing block 0%, formed with a conicalrecess 91 and a channel 0, is driven against the shoulder h, upon whichit is seated. An elongated roller 13, having diminished truncatedconical ends q, bears at one end in the bearing-block just mentioned andat its other end in a corresponding block 1', having a conical recess 8and channel 25. This latter bearing-block has its perimeterscrew-threaded and takes into the tapped outer end of the hollow spindleto receive the opposite conical end of the roller, while a plug a,formed with a cavity '0 and with its perimeter screw-threaded, takesinto the extreme end and is squared at its outer end to enable it to bescrewed into or out of place, while the outer end of the last-mentionedbearing-block is transversely grooved, as at a, to afford a catch for ascrew-driver. A bridge-piece braces the outer ends of the spindlestogether and consists of a rod 3, oppositely screw-threaded at its endsto take into one end 4:, which is tapped, of each of a pair of elbows,the otherends whereof are jammed upon the ends of the spindles.

Before the parts are assembled together I fill the cavities in the plugswith a thick lubricant, such as axle-grease, which will not run unlessthe bearing-blocks become heated, when it will ooze through the channelsand lubricate the bearings.

I prefer to construct the bearing-blocks of lignum-vitze or other hardwood, as it absorbs the lubricant to a certain extent, thus renderingthe shipper perfectly noiseless.

What I claim is as follows:

1. A belt-shipper finger consisting of a hollow spindle, an elongatedroller located in said hollow spindle, the side of said hollow spindlebeing cut away to-expose said roller, means for localizing said rollerrelatively to the opening formed by said cut-away portion; and means forsecuring said finger to the shipperrod substantially as and for thepurpose set forth.

2. A belt-shipper finger consisting of a hollow spindle, an elongatedroller located in said hollow spindle, the side of said hollow spindlebeing cut away to expose said roller; means for localizing said rollerrelatively to the opening formed by said cut-away portion; means forlubricating said roller; and means for securing said finger to theshipper-rod substantially as and for the purpose set forth.

3. A belt-shipper finger consisting of a hollow spindle having anopening in one side, a roller located in said hollow spindle and a pairof absorbent. bearing-blocks located in said spindle and receiving theends of said roller, and a lubricant-carrier located within said spindleadjacent to each bearing-block, substantially as described and for thepurpose set forth.

4:. A belt-shipper finger consisting of a hollow spindle having anopening in one side, a roller located in said hollow spindle and ofslightly-greater length than said opening, a pair of absorbentbearing-blocks located in said spindle and receivingthe ends of saidroller, and a lubricant-carrier located within said spindle adjacent toeach bearing-block,

a roller located Within said spindle and of slightly-greater length thansaidopening; a pair of bearing-blocks located within said spindle andeach formed with a conical recess and a channel; a pair of plugs locatedwithin said spindle adjacent to said bearing-blocks and formed each witha cavity; a bridge-piece for connecting the outer ends of said fingerstogether; and means for securing said fingers to the shipper-rodsubstantially as described and for the'purpose set forth.

In testimony whereof Ihave affixed my sig= nature in presence of twowitnesses.

JAMES AROHIBALD CRAIG. Witnesses:

WILLIAM P. MOFROST, FRED. J. SEARS.

